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Single-photon excitation of Kα in heliumlike Kr34+: Results supporting quantum electrodynamics predictions

MPS-Authors
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Epp,  Sascha W.
Miller Group, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Steinbrügge,  René Friedrich
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Bernitt,  S.
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Rudolph,  Jan K.
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;
Institut für Atom- und Molekülphysik, Justus-Liebig Universität Gießen, Leihgesterner Weg 217, 35392 Gießen, Germany;

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Bekker,  Hendrik
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Versolato,  Oscar
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

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Crespo López-Urrutia,  J. R.
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

External Ressource
Fulltext (public)

PhysRevA.92.020502.pdf
(Publisher version), 279KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Epp, S. W., Steinbrügge, R. F., Bernitt, S., Rudolph, J. K., Beilmann, C., Bekker, H., et al. (2015). Single-photon excitation of Kα in heliumlike Kr34+: Results supporting quantum electrodynamics predictions. Physical Review A, 92(2): 020502(R). doi:10.1103/PhysRevA.92.020502.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0028-4E34-8
Abstract
We study two fundamental transitions from the ground state 1S0 to 1P1 (w line) and 3P1 (y line) in heliumlike Kr34+ by resonant single-photon excitation using an electron-beam ion trap and monochromatic x rays at PETRA III. Our results for the transition energies E(w) = 13114.47(14) eV and E(y) = 13026.15(14) eV are in excellent agreement with quantum electrodynamics calculations, but disagree for w with the average of the hitherto reported experimental results ĒLit(w) = 13115.15(17) eV. Independently of any energy calibration, we obtain a value E(w)/E(y) = 1.006780(7), also in consistency with predictions.